CN214672603U

CN214672603U - Yellow light room working lamp adopting LED light source for illumination

Info

Publication number: CN214672603U
Application number: CN202120031141.5U
Authority: CN
Inventors: 李俊云; 张建立; 郭醒
Original assignee: Nanchang Guiji Semiconductor Technology Co ltd; Nanchang University
Current assignee: Nanchang Guiji Semiconductor Technology Co ltd; Nanchang University
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-11-09
Anticipated expiration: 2031-01-07

Abstract

The utility model discloses an adopt LED light source to carry out yellow light room work lamp that throws light on, including shell, base plate, solid crystal layer, gold thread, circuit, grading component, LED light source and primary optical lens, the LED light source comprises a plurality of LED chips, and a plurality of LED chips comprise 1~2 ruddiness LED chip and 1~4 yellow light LED chips. The utility model discloses directly adopt LED chip light source, the LED chip is the ruddiness LED chip of AlGaInP material system preparation and the yellow light LED chip of AlInGaN material system preparation. Through the utility model discloses, solved the influence of following wave band blue-violet light of 500nm to the exposure process completely from the source, avoided traditional yellow light to adopt the fluorescent lamp to add yellow phosphor powder and give other people the blue light harm that brings, the uncomfortable scheduling problem of people's eye simultaneously, realized low color temperature, high color rendering index, high light efficiency, safe yellow light room and used the lamp.

Description

Yellow light room working lamp adopting LED light source for illumination

Technical Field

The utility model belongs to the technical field of the LED lighting technology and specifically relates to an adopt LED light source to carry out yellow light room work lamp that throws light on.

Background

With the continuous development of the LED manufacturing technology in recent years, the application range of the LED light source in the illumination field is continuously expanded and popularized, especially in the commercial energy-saving illumination field, compared with the traditional light source, the LED light source has greater advantages in both indoor illumination and outdoor illumination, and the market sales ratio is continuously increased. Compared with the traditional lighting source, the LED made of semiconductor elements is taken as the high-quality light source which is energy-saving at present, and has the advantages of high luminous efficiency, good color rendering index, long service life, safety, energy conservation, health, environmental protection and the like, so that the LED is taken as the priority for many existing lighting appliances.

The yellow chamber is a region for performing IC wafer lithography in the semiconductor manufacturing field, and is generally required to be ensured in a relatively closed environment and to filter short wavelengths below 500nm in order to avoid the influence of other lamps on the lithography exposure process, so the lamp effect of the lithography chamber is often yellow, and is called as a yellow chamber. At present, most of the common light sources for semiconductor yellow light chambers in the market are traditional fluorescent lamp tubes, the inner walls of which are coated with a layer of yellow fluorescent powder, and the yellow fluorescent powder is used for filtering and removing blue-violet light with short wavelength less than 500nm emitted by the fluorescent lamp. The yellow lamp manufactured by the method has the problems of blue light harm, human eye discomfort, low lighting effect, poor color rendering property, low reliability, short service life and the like caused by the use of fluorescent powder.

Disclosure of Invention

An object of the utility model is to provide an adopt the LED light source to carry out the yellow light room working lamp that throws light on, this yellow light room working lamp both accorded with the requirement that the yellow light room abolished the blue purple light of 500nm below the light source, can also provide a comfortable, safe semiconductor manufacturing operational environment simultaneously.

The purpose of the utility model is realized like this:

the utility model provides an adopt LED light source to carry out yellow light room work lamp that throws light on, includes shell, base plate, gu the crystal layer, gold wire, circuit, grading component, its characterized in that: still include LED light source and optical lens once, the LED light source comprises a plurality of LED chips, and a plurality of LED chips comprise 1~2 ruddiness LED chips and 1~4 yellow light LED chips, wherein: the peak wavelength range of the red light LED chip is 610-650 nm, the peak wavelength range of the yellow light LED chip is 560-580 nm, the light power ratio of red light to yellow light is 1.5-3.5, and the LED chips are connected in series and driven by a single constant current; the LED chips are respectively fixed on the substrate in the shell through the die bonding layer, two ends of a pin of each LED chip are respectively fixedly connected with a circuit on the substrate through gold wires, and the primary optical lens is arranged on the substrate.

On the basis of the scheme, the LED light source adopts a fluorescent powder-free technology, and directly adopts an LED chip light source, wherein the LED chip is a red LED chip prepared by an AlGaInP material system and a yellow LED chip prepared by an AlInGaN material system.

On the basis of the scheme, the primary optical lens is made of one of silica gel, epoxy resin and polyurethane, and the primary optical lens can also be made of one of silica gel, epoxy resin or polyurethane with silicon dioxide or titanium dioxide micro-nano scattering particles doped inside. The appearance of the primary optical lens is one of a spherical cap, a free-form surface or a surface microstructure array.

On the basis of the scheme, the light distribution element is arranged on the shell and used for sealing and protecting the LED light source, and the material of the light distribution element is one of polymethyl methacrylate (PMMA), Polycarbonate (PC) or glass.

The utility model is characterized in that: the LED chip with the high-luminous-efficiency vertical structure is directly used as a lighting source, the yellow light is formed by directly mixing and synthesizing the red light LED chip and the yellow light LED chip, the spectrum with the wave band below 500nm does not exist, the requirement of a yellow light room on the light source is better met, and the influence of the blue-violet light with the wave band below 500nm on the semiconductor exposure preparation process is completely avoided from the source; meanwhile, the fluorescent powder-free LED solves the problems of blue light harm, discomfort to human eyes, low luminous efficiency, poor color rendering property and the like brought to people by the traditional yellow room fluorescent lamp adopting a fluorescent lamp and yellow fluorescent powder, and solves the problems of low reliability, short service life and the like brought by the use of the fluorescent powder, realizes the yellow room lamp with low color temperature, high color rendering index, high luminous efficiency and safety, and provides a comfortable and safe working environment for workers in the yellow room.

Therefore, the utility model has the characteristics of no blue-violet light, low colour temperature, high color rendering index, high light efficiency, safety etc, be a fine solution that replaces original yellow light, have extensive application prospect in the semiconductor manufacturing illumination field.

Drawings

Fig. 1 is a schematic structural diagram of an LED light source according to embodiment 1 of the present invention;

fig. 2 is a schematic front view of an LED lamp structure according to embodiment 1 of the present invention;

fig. 3 is a schematic diagram of the distribution of multi-primary LED chips on a package substrate according to embodiment 1 of the present invention;

FIG. 4 is a spectrum chart of example 1 of the present invention;

fig. 5 is a schematic top view of an LED lamp structure according to embodiment 1 of the present invention;

fig. 6 is a schematic structural diagram of an LED light source according to embodiment 2 of the present invention;

fig. 7 is a schematic structural diagram of an LED light source according to embodiment 3 of the present invention.

Detailed Description

The present invention is described in more detail below by way of examples, but the following examples are illustrative only, and the scope of the present invention is not limited by these examples.

Example 1:

as shown in fig. 1, an LED light source used in a working lamp of a yellow light room includes LED chips 1, die attach layers 2, a substrate 3, gold wires 4, circuits 5, and ball cap lenses 6, wherein four LED chips 1 are arranged at intervals and fixed on the substrate 3 through the die attach layers 2, two ends of pins of the LED chips 1 are fixedly connected to the circuits 5 on the substrate through the gold wires 4, respectively, and the ball cap silicone lenses 6 (i.e., primary optical lenses) are mounted on the substrate 3.

As shown in fig. 2, the yellow light room working lamp using the LED light source for illumination includes a plurality of LED light sources 21, a substrate 22, a housing 23, an electric wire 24, a power module 25, and a light distribution element 26, where the LED light sources 21 are composed of a plurality of LED chips 1, the LED light sources 21 are mounted on the substrate 22 through solders, the substrate 22 is fixed on the housing 23 through a mechanical connection manner, a circuit on the substrate 22 is connected with the power module 25 through the electric wire 24, the power module is fixed on the housing 23 through a mechanical connection manner, the light distribution element 26 is mounted on the housing 23, and the light distribution element 26 is made of glass.

As shown in fig. 3, the 4 LED chips are composed of 2 red LED chips 11 and 2 yellow LED chips 12, the red LED chip 11 is a vertical red LED chip made of AlGaInP material system, and has a peak wavelength range of 610-650 nm, and the yellow LED chip 12 is a vertical yellow LED chip made of AlInGaN material system, and has a peak wavelength range of 560-580 nm.

Fig. 4 shows that the ratio of the light power of the red LED chip 11 to the light power of the yellow LED chip 12 is 1: 1, the color temperature of the finally obtained LED light source is 2200K.

Fig. 5 is a top view of an LED lamp for semiconductor manufacturing yellow room lighting in embodiment 1 of the present invention, in which 8 LED light sources 21 are arranged in a rectangular manner.

Example 2:

fig. 6 is a schematic structural diagram of the LED lamp light source in this embodiment, which is the only difference from embodiment 1: the LED light source adopts a surface microstructure silica gel concave lens 36.

Example 3:

fig. 7 is a schematic structural diagram of the LED lamp light source in this embodiment, which is the only difference from embodiment 1: the LED light source employs a surface microstructure silicone convex lens 46.

Claims

1. The utility model provides an adopt LED light source to carry out yellow light room work lamp that throws light on, includes shell, base plate, gu the crystal layer, gold wire, circuit, grading component, its characterized in that: still include LED light source and optical lens once, the LED light source comprises a plurality of LED chips, and a plurality of LED chips comprise 1~2 ruddiness LED chips and 1~4 yellow light LED chips, wherein: the peak wavelength range of the red light LED chip is 610-650 nm, the peak wavelength range of the yellow light LED chip is 560-580 nm, the light power ratio of red light to yellow light is 1.5-3.5, and the LED chips are connected in series and driven by a single constant current; the LED chips are respectively fixed on the substrate in the shell through the die bonding layer, two ends of a pin of each LED chip are respectively fixedly connected with a circuit on the substrate through gold wires, and the primary optical lens is arranged on the substrate.

2. The yellow room work light illuminated by an LED light source of claim 1, wherein: the LED chip is a red LED chip prepared by an AlGaInP material system and a yellow LED chip prepared by an AlInGaN material system.